PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/05-16:58:00
G02     211.0          49.5               12.2 +/-    1.62      15.5 +/-    1.62  0.050 / 0.080
G06     83.5           77.9                8.3 +/-    0.60       8.5 +/-    0.60  0.060 / 0.080
G12     316.9          32.8                8.4 +/-    1.70      13.8 +/-    1.70  0.060 / 0.190
G17     51.2           36.8                7.5 +/-    0.68      11.5 +/-    0.68  0.100 / 0.210
G19     24.3           56.8                9.4 +/-    0.41      11.0 +/-    0.41  0.060 / 0.050
G24     274.6          43.0                9.1 +/-    1.00      12.6 +/-    1.00  0.050 / 0.050
G28     116.7          19.8               10.2 +/-    1.31      22.6 +/-    1.31  0.050 / 0.060